4GEE

Pyrrolopyrimidine inhibitors of DNA gyrase B and topoisomerase IV, part I: structure guided discovery and optimization of dual targeting agents with potent, broad-spectrum enzymatic activity.


X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP5.629325% (w/v) PEG 1500, 3% (v/v) t-butanol, 20% (w/v) glycerol, 20 mM citrate, VAPOR DIFFUSION, HANGING DROP, temperature 293K, pH 5.6
Crystal Properties
Matthews coefficientSolvent content
2.2244.52

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 54.93α = 90
b = 58.08β = 90
c = 66.25γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDNOIR-12010-08-01MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONALS BEAMLINE 4.2.2ALS4.2.2

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)Net I Over Average Sigma (I)RedundancyNumber Reflections (All)Number Reflections (Observed)Observed Criterion Sigma (F)Observed Criterion Sigma (I)B (Isotropic) From Wilson Plot
11.734.1998.92387623876
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.71.7998.90.4540.3853.43.53181

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodResolution (High)Resolution (Low)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (All)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUT1.734.192387622609122199.520.173560.173560.171450.21465RANDOM19.315
Temperature Factor Modeling
Anisotropic B[1][1]Anisotropic B[1][2]Anisotropic B[1][3]Anisotropic B[2][2]Anisotropic B[2][3]Anisotropic B[3][3]
-0.08-0.220.3
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg32.127
r_dihedral_angle_4_deg11.113
r_dihedral_angle_3_deg10.254
r_dihedral_angle_1_deg5.114
r_angle_refined_deg1.248
r_chiral_restr0.071
r_bond_refined_d0.006
r_gen_planes_refined0.005
r_angle_other_deg
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms1524
Nucleic Acid Atoms
Solvent Atoms227
Heterogen Atoms32

Software

Software
Software NamePurpose
REFMACrefinement